ISSN 1880-7682 Volume 18, No. 1 November 2020 ISME/GLOMIS Electronic Journal (ISSN 1880-7682) is published by International Society for Mangrove Ecosystems (ISME). Available on-line at http://www.glomis.com. Headquarters: c/o Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0129 Japan. 4 Aglaia cucullata: A little-known mangrove with big potential for research Wijarn Meepol1, Gordon S. Maxwell2 & Sonjai Havanond3 1Chief, Mangrove Forest Research Centre Ranong, Department Marine and Coastal Resources, Thailand 2Open University of Hong Kong, Director Ecosystem Research Centre, Paeroa, New Zealand 3Expert, Department of Marine and Coastal Resources, Bangkok, Thailand Introduction The mangrove Aglaia cucullata (previously known as Amoora cucullata) is described in the IUCN Red List of Threatened Species as “not well known” and “poorly known”, and designated as Data Deficient (IUCN, 2017). In many respects, this assessment may well be justified since A. cucullata does not feature strongly in the mangrove literature. This paper seeks to help enhance the current Red List status of A. cucullata by reviewing its botany, uses, ecology and physiology. A description of a natural population of A. cucullata in the Ranong mangrove forest, which is the first record for Thailand, is provided. Past research studies of the species in Thailand are mentioned and research opportunities are discussed. Botany and uses The genus Aglaia (previously known as Amoora) comprises 25–30 species, many are economically important timber trees (Xu et al., 2019). Described in the Mangrove Guidebook for Southeast Asia by Giesen et al. (2007), Aglaia cucullata (Roxb.) Pellegr. (Figure 1) belongs to the family Meliaceae. The species occurs in lowland forest and along tidal riverbanks. A mangrove associate, A. cucullata is a small to medium-sized tree with plank buttresses and pneumatophores. The bark is smooth, brown or pale orange, and somewhat scaly. The wood is pale yellowish to orange-brown, with white latex. Leaves are compound bearing 5‒9 asymmetrical leaflets. Inflorescences are in clusters, each bearing numerous small, yellowish flowers, with three petals and six slightly protruding anthers. Fruits are round with leathery skin and they split into three locules each containing one seed wrapped by a shiny red aril. Figure 1 Line drawing of a twig of bearing leaves, flowers and fruits of Aglaia cucullata (From Giesen et al., 2007).
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